Equidistribution for Tannakian monodromy groups

Fuente: arXiv
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Autor principal: Zurbuchen, Beat
Formato: Preprint
Publicado: 2026
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author Zurbuchen, Beat
author_facet Zurbuchen, Beat
contents We prove that a perverse sheaf on a connected commutatitve algebraic group over a finite is generically unramified. This implies an equidistribution theorem for Tannakian monodromy groups in previously unavailable generality. We also prove a stratification theorem for exponential sums in families indexed by a scheme and the characters of a connected commutative algebraic group. Our method is based on Tannakian categories introduced by Gabber and Loeser. This method naturally yields fiber functors. We also prove vanishing theorems over a connected commutative algebraic group, classify the negligible sheaves, and prove relative weak propagation theorems for tori.
format Preprint
id arxiv_https___arxiv_org_abs_2602_21878
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Equidistribution for Tannakian monodromy groups
Zurbuchen, Beat
Number Theory
Algebraic Geometry
We prove that a perverse sheaf on a connected commutatitve algebraic group over a finite is generically unramified. This implies an equidistribution theorem for Tannakian monodromy groups in previously unavailable generality. We also prove a stratification theorem for exponential sums in families indexed by a scheme and the characters of a connected commutative algebraic group. Our method is based on Tannakian categories introduced by Gabber and Loeser. This method naturally yields fiber functors. We also prove vanishing theorems over a connected commutative algebraic group, classify the negligible sheaves, and prove relative weak propagation theorems for tori.
title Equidistribution for Tannakian monodromy groups
topic Number Theory
Algebraic Geometry
url https://arxiv.org/abs/2602.21878